VICE-PRESIDENT OF THE GEOLOGICAL SOCIETY,
FELLOW OF THE ROYAL COLLEGE OF SURGEONS OF ENGLAND, ETC.
AUTHOR OF "THE WONDERS OF GEOLOGY," ETC. ETC.

"All things in nature are engaged in writing their own history. The planet and the pebble are attended by their shadows—the rolling rock leaves its farrows on the mountain side—the river its channel in the soil—the animal its bones in the stratum—the fern and the leaf inscribe their modest epitaphs on the coal—the falling drop sculptures its story on the sand, or on the stone—not a footstep on the snow or on the ground but traces in characters more or less enduring the record of its progress."—Emerson.


With Seventy-four plates,

CONTAINING NEARLY NINE HUNDRED FIGURES.


LONDON:
H. G. BOHN, YORK STREET, COVENT GARDEN.
1850.

LONDON: